XWIKI-10776: The cache of the LESSCompiler is badly designed.

xwiki-platform-core/pom.xml

...esscss-api/src/main/java/org/xwiki/lesscss/LESSCache.java

...c/main/java/org/xwiki/lesscss/internal/AbstractCache.java

...va/org/xwiki/lesscss/internal/AbstractCachedCompiler.java

...n/java/org/xwiki/lesscss/internal/ColorThemeListener.java

...a/org/xwiki/lesscss/internal/CurrentColorThemeGetter.java

...wiki/lesscss/internal/DefaultCurrentColorThemeGetter.java

...g/xwiki/lesscss/internal/DefaultLESSSkinFileCompiler.java

.../org/xwiki/lesscss/internal/LESSExportActionListener.java

...esscss-default/src/main/resources/META-INF/components.txt

...va/org/xwiki/lesscss/internal/ColorThemeListenerTest.java

.../lesscss/internal/DefaultCurrentColorThemeGetterTest.java

.../xwiki/lesscss/internal/DefaultLESSSkinFileCacheTest.java

...iki/lesscss/internal/DefaultLESSSkinFileCompilerTest.java

.../xwiki/lesscss/internal/LESSExportActionListenerTest.java

...ain/java/org/xwiki/lesscss/LessCompilerScriptService.java

...java/org/xwiki/lesscss/LessCompilerScriptServiceTest.java